County Population Estimates

Loudoun County, VA [51107] Demographic Characteristics & Trends
-- a component of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area [47900] -- click link to view metro S&O report

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This document brings together several 2017 vintage population estimates developed by the Census Bureau for this area developed and released separately in 2018. These official model-based estimates are developed and updated annually. The data presesentation here provides more comprehensive insights into demographic characteristics and trends for this area than available elsewhere. ProximityOne uses these data to develop Situation & Outlook (S&O) estimates and projections to 2060. See related table. Join us in weekly Data Analytics Lab web sessions to discuss organization and use of these and related data.

The S&O Trends Analysis package used to develop these tables is available to present/analyze these data with wide-ranging additional detail and alternative data formats.
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Table 1. Population & Components of Change -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	315,600	326,896	338,275	350,858	362,874	374,697	386,279	398,080	82,480
Births	...	5,017	5,005	4,910	5,109	5,172	5,340	5,339	5,127
Deaths	...	1,022	1,066	1,120	1,155	1,206	1,398	1,475	1,206
Natural Increase	...	3,995	3,939	3,790	3,954	3,966	3,942	3,864	3,921
Net Migration	...	7,204	7,343	8,675	7,945	7,805	7,630	7,927	7,790
International	...	2,219	2,317	2,235	2,327	2,552	2,574	2,535	2,394
Domestic	...	4,985	5,026	6,440	5,618	5,253	5,056	5,392	5,396

Table 2. Population by Gender & Group Quarters Population -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	315,600	326,896	338,275	350,858	362,874	374,697	386,279	398,080	82,480
Male	155,746	161,530	167,384	173,720	179,826	185,606	191,318	197,383	41,637
Female	159,854	165,366	170,891	177,138	183,048	189,091	194,961	200,697	40,843
Group Quarters	...	1,175	1,341	1,340	1,340	1,359	1,361	1,352	176

Table 3. Population by Race/Origin -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	315,600	326,896	338,275	350,858	362,874	374,697	386,279	398,080	82,480
White alone	231,955	238,624	245,104	251,952	257,602	262,765	267,623	272,307	40,352
Black alone	23,820	24,672	25,537	26,519	27,484	28,717	29,932	31,331	7,511
AIAN alone	1,460	1,483	1,539	1,622	1,638	1,661	1,760	1,833	373
Asian alone	47,806	50,848	54,183	58,273	62,972	67,544	72,172	77,093	29,287
NHOPI alone	344	383	428	439	431	424	412	418	74
Two+ Races	10,215	10,886	11,484	12,053	12,747	13,586	14,380	15,098	4,883
Hispanic (any race)	39,297	41,656	43,780	45,926	47,929	50,343	52,711	55,220	15,923

Table 4. Population by Age by Race/Origin -- 2017

Population	Total	White alone	Black alone	AIAN alone	Asian alone	NHOPI alone	Two+ Races	Hispanic (any race)
Total	398,080	272,307	31,331	1,833	77,093	418	15,098	55,220
Age 0-4	28,552	18,618	2,261	110	5,394	51	2,118	5,322
Age 5-9	32,829	20,888	2,275	141	7,098	14	2,413	5,114
Age 10-14	33,232	21,755	2,264	214	6,731	26	2,242	4,973
Age 15-19	27,430	19,250	2,082	160	4,223	21	1,694	4,365
Age 20-24	20,114	14,421	1,766	129	2,797	34	967	3,756
Age 25-29	20,017	13,833	1,884	81	3,521	24	674	3,680
Age 30-34	28,244	18,246	2,321	138	6,650	35	854	4,609
Age 35-39	34,301	21,219	2,921	185	9,061	54	861	5,248
Age 40-44	33,754	20,953	2,569	191	9,239	27	775	4,896
Age 45-49	33,949	23,353	2,720	128	7,031	32	685	4,037
Age 50-54	29,441	21,781	2,581	106	4,378	28	567	3,169
Age 55-59	23,772	18,131	2,043	76	3,068	17	437	2,268
Age 60-64	16,838	12,585	1,399	61	2,470	25	298	1,403
Age 65-69	12,284	9,139	821	46	2,040	16	222	969
Age 70-74	9,393	7,104	569	26	1,560	6	128	638
Age 75-79	5,955	4,474	368	19	1,006	6	82	336
Age 80-84	3,939	3,085	269	12	529	1	43	206
Age 85 up	4,036	3,472	218	10	297	1	38	231

Table 5. Population by Single Year of Age -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Age 0000	5,144	5,040	4,995	4,904	5,107	5,159	5,329	5,324	180
Age 0101	5,307	5,429	5,308	5,354	5,264	5,344	5,332	5,549	242
Age 0202	5,604	5,517	5,696	5,694	5,696	5,565	5,641	5,724	120
Age 0303	5,741	5,815	5,753	5,949	6,006	5,981	5,777	5,933	192
Age 0404	5,852	5,944	6,010	5,929	6,146	6,157	6,171	6,022	170
Age 0505	5,908	5,940	6,029	6,241	6,105	6,268	6,279	6,347	439
Age 0606	5,938	6,018	6,102	6,162	6,375	6,247	6,453	6,454	516
Age 0707	5,960	6,049	6,137	6,199	6,310	6,568	6,421	6,641	681
Age 0808	5,700	6,045	6,171	6,231	6,263	6,408	6,702	6,547	847
Age 0909	5,682	5,866	6,137	6,267	6,362	6,414	6,516	6,840	1,158
Age 1010	5,479	5,811	5,981	6,238	6,370	6,437	6,579	6,632	1,153
Age 1111	5,145	5,632	5,868	6,090	6,277	6,473	6,550	6,659	1,514
Age 1212	5,115	5,314	5,733	5,997	6,161	6,359	6,579	6,668	1,553
Age 1313	5,016	5,233	5,449	5,826	6,052	6,234	6,468	6,657	1,641
Age 1414	4,889	5,069	5,294	5,541	5,875	6,098	6,342	6,616	1,727
Age 1515	4,797	4,996	5,118	5,324	5,571	5,950	6,157	6,433	1,636
Age 1616	4,648	4,889	5,059	5,214	5,370	5,676	5,985	6,271	1,623
Age 1717	4,369	4,689	4,914	5,100	5,234	5,378	5,694	5,995	1,626
Age 1818	3,397	3,842	4,047	4,265	4,352	4,467	4,615	4,886	1,489
Age 1919	2,518	2,931	3,266	3,431	3,566	3,640	3,747	3,845	1,327
Age 2020	2,285	2,704	3,120	3,419	3,607	3,791	3,882	3,969	1,684
Age 2121	2,267	2,456	2,932	3,285	3,558	3,837	3,993	4,063	1,796
Age 2222	2,474	2,511	2,675	3,101	3,474	3,772	3,998	4,164	1,690
Age 2323	2,723	2,739	2,775	3,033	3,230	3,583	3,880	4,012	1,289
Age 2424	3,060	2,913	2,916	2,988	3,192	3,386	3,735	3,906	846
Age 2525	3,290	3,233	3,221	3,138	3,205	3,349	3,575	3,817	527
Age 2626	3,417	3,492	3,424	3,503	3,373	3,397	3,565	3,725	308
Age 2727	3,727	3,638	3,765	3,863	3,720	3,710	3,726	3,883	156
Age 2828	4,116	3,974	3,937	4,116	4,256	4,097	4,009	4,096	-20
Age 2929	4,373	4,390	4,360	4,263	4,556	4,569	4,485	4,496	123
Age 3030	4,713	4,715	4,757	4,819	4,780	4,963	4,956	4,889	176
Age 3131	4,753	5,086	5,022	5,149	5,210	5,113	5,388	5,333	580
Age 3232	4,884	4,975	5,405	5,361	5,570	5,540	5,494	5,771	887
Age 3333	5,126	5,107	5,234	5,835	5,785	5,927	5,950	5,881	755
Age 3434	5,324	5,316	5,430	5,641	6,327	6,204	6,227	6,370	1,046
Age 3535	5,535	5,551	5,556	5,757	6,030	6,676	6,487	6,573	1,038
Age 3636	5,544	5,691	5,733	5,865	6,157	6,364	6,952	6,838	1,294
Age 3737	5,766	5,723	5,863	6,039	6,146	6,404	6,597	7,219	1,453
Age 3838	6,195	5,964	5,915	6,015	6,271	6,380	6,604	6,862	667
Age 3939	6,387	6,401	6,144	6,044	6,250	6,496	6,595	6,809	422
Age 4040	6,436	6,480	6,551	6,323	6,239	6,405	6,670	6,718	282
Age 4141	6,066	6,588	6,595	6,653	6,456	6,422	6,604	6,841	775
Age 4242	5,853	6,122	6,646	6,739	6,760	6,591	6,586	6,736	883
Age 4343	5,711	6,015	6,263	6,804	6,883	6,898	6,651	6,753	1,042
Age 4444	5,733	5,775	6,107	6,330	6,921	6,884	6,970	6,706	973
Age 4545	5,980	5,830	5,861	6,155	6,388	6,970	6,965	7,065	1,085
Age 4646	5,861	6,051	5,853	5,878	6,161	6,445	7,058	6,964	1,103
Age 4747	5,656	5,891	6,037	5,917	5,827	6,185	6,507	7,133	1,477
Age 4848	5,311	5,691	5,927	6,077	5,881	5,854	6,223	6,532	1,221
Age 4949	5,178	5,344	5,680	5,931	6,103	5,894	5,876	6,255	1,077
Age 5050	4,868	5,181	5,360	5,691	5,944	6,138	5,864	5,878	1,010
Age 5151	4,540	4,880	5,192	5,392	5,677	5,923	6,090	5,901	1,361
Age 5252	4,271	4,585	4,899	5,243	5,346	5,699	5,902	6,112	1,841
Age 5353	4,071	4,291	4,561	4,937	5,296	5,323	5,665	5,907	1,836
Age 5454	3,726	4,105	4,335	4,568	4,909	5,302	5,287	5,643	1,917
Age 5555	3,532	3,715	4,068	4,341	4,553	4,907	5,235	5,280	1,748
Age 5656	3,288	3,555	3,707	4,025	4,300	4,491	4,866	5,230	1,942
Age 5757	3,103	3,273	3,554	3,631	3,992	4,275	4,457	4,783	1,680
Age 5858	2,845	3,068	3,256	3,541	3,618	3,973	4,173	4,345	1,500
Age 5959	2,666	2,818	3,051	3,248	3,492	3,567	3,915	4,134	1,468
Age 6060	2,602	2,636	2,772	3,093	3,246	3,462	3,549	3,927	1,325
Age 6161	2,491	2,611	2,644	2,773	3,086	3,215	3,458	3,517	1,026
Age 6262	2,442	2,445	2,598	2,627	2,733	3,027	3,129	3,370	928
Age 6363	2,536	2,388	2,414	2,542	2,600	2,722	2,971	3,057	521
Age 6464	1,805	2,509	2,414	2,359	2,538	2,594	2,712	2,967	1,162
Age 6565	1,809	1,816	2,479	2,415	2,368	2,533	2,564	2,657	848
Age 6666	1,682	1,754	1,778	2,423	2,366	2,353	2,494	2,540	858
Age 6767	1,637	1,684	1,744	1,759	2,355	2,348	2,340	2,456	819
Age 6868	1,393	1,639	1,686	1,750	1,764	2,342	2,352	2,299	906
Age 6969	1,240	1,392	1,646	1,694	1,734	1,798	2,346	2,332	1,092
Age 7070	1,136	1,248	1,405	1,658	1,682	1,746	1,784	2,355	1,219
Age 7171	982	1,160	1,248	1,435	1,658	1,698	1,764	1,812	830
Age 7272	935	1,001	1,179	1,292	1,475	1,676	1,746	1,805	870
Age 7373	855	934	1,013	1,201	1,294	1,483	1,692	1,746	891
Age 7474	823	889	949	1,033	1,207	1,291	1,506	1,675	852
Age 7575	802	828	903	963	1,013	1,200	1,288	1,475	673
Age 7676	723	801	841	906	961	1,041	1,202	1,294	571
Age 7777	679	714	785	833	895	956	1,037	1,194	515
Age 7878	698	697	738	769	831	910	958	1,039	341
Age 7979	632	685	712	744	764	855	910	953	321
Age 8080	604	630	708	714	742	778	883	920	316
Age 8181	506	590	614	707	685	737	766	891	385
Age 8282	501	485	599	608	689	677	736	767	266
Age 8383	461	480	480	559	591	690	679	716	255
Age 8484	414	447	454	459	539	576	681	645	231
Age 8585	2,349	2,527	2,718	2,928	3,153	3,462	3,733	4,036	1,687
Age 0517	68,646	71,551	73,992	76,430	78,325	80,510	82,725	84,760	16,114